Will these fit my Worx 20V tools?

They are built for the Worx 20V Power Share system and listed as replacements for the WA3520 and WA3525 packs. They also work in 40V (2x20V) tools such as the WG284, WG584 and WG644.

Which chargers work with these batteries?

They are listed as compatible with the WA3875, WA3731, WA3732, WA3742 and WA3770 chargers. Other Worx 20V chargers may also work, but these are the stated ones.

How do these compare with genuine Worx batteries?

Capacity matches the 4.0Ah Worx packs, and the pair gives you two batteries at once. Some owners report shorter life than genuine packs, so the trade-off is longevity against the two-pack convenience.

Are these the same as the WA3525 and WA3520?

They are sold as replacements for those packs, not as genuine Worx parts. Expect the same 20V, 4.0Ah specification but different warranty support.

Two 20V 4.0Ah lithium-ion batteries. Chargers and tools are not included.

Can I use one battery in a 40V tool?

No. The 40V (2x20V) tools take two 20V packs together. A single pack will not run them.

Where is the Worx 20V 4.0Ah Replacement Battery 2-Pack cheapest?

At Walmart, for $29.74, as of our latest check.

What do buyers say about the Worx 20V 4.0Ah Replacement Battery 2-Pack?

Rated 3.9 out of 5 from 89 ratings.

Worx 20V 4.0Ah Replacement Battery 2-Pack

Best price now

$29.74at WalmartChecked Nov 11

Prices are checked against each store and labelled with when.

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Worx 20V 4.0Ah Replacement Battery 2-Pack

Best price now

$29.74at WalmartChecked Nov 11

Prices are checked against each store and labelled with when.

Visit Walmart

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Price facts

Last seen at $29.74 at Walmart on Nov 11.

Our take on the Worx 20V 4.0Ah Replacement Battery 2-Pack

This is a two-pack of 20V 4.0Ah lithium-ion replacement batteries for Worx Power Share tools. Each pack doubles the runtime of the standard 2.0Ah packs many Worx tools ship with, and the pair lets you keep one charging while the other runs. They are listed as replacements for the WA3525 and WA3520 packs and work with several Worx chargers and 40V (2x20V) tools. Buyers weighing them against genuine Worx packs should note the mixed reception: ratings sit at 3.9 out of 5, with complaints about longevity and fit alongside praise for value and runtime.

Best forOwners of Worx 20V Power Share tools who want spare runtimeUsers of 40V (2x20V) Worx tools like the WG284 and WG584People replacing worn WA3520 or WA3525 packsHouseholds running several Worx tools at once

Pros

4.0Ah capacity gives longer runtime than the 2.0Ah packs many tools ship with
Two batteries let you keep one on the charger while the other works
Fits the Worx 20V Power Share system and listed 40V (2x20V) tools
Works with common Worx chargers including the WA3875 and WA3731
Replacement for the WA3525 and WA3520 packs

Cons

Mixed reception at 3.9 out of 5 from 89 ratings
Some owners report shorter life than genuine Worx packs
Fit and charge issues reported by a share of buyers
Not a genuine Worx pack, so warranty support differs

Worx 20V 4.0Ah Replacement Battery 2-Pack prices at every store

WalmartNew
In stockSold by FERRYBOAT
$29.74Checked Nov 11
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Worx 20V 4.0Ah Replacement Battery 2-Pack price history

Lowest price we've seen: $29.74 on Nov 11 at Walmart. Tracked across 1 store since Nov 11.

What reviewers say

3.9 / 589 ratings

Ratings average 3.9 out of 5 from 89 buyers. Many are satisfied with the runtime and the convenience of two packs, while a noticeable share report batteries that faded early or did not fit or charge cleanly.

What people mention

RuntimePraisedBuyers say the 4.0Ah packs run noticeably longer than the smaller packs their tools came with.
ValuePraisedOwners like getting two batteries in one purchase for running several tools.
LongevityCriticisedSome buyers report the packs losing capacity or failing sooner than genuine Worx batteries.
FitMixedMany say they click into Worx tools fine, but some report a loose or tight fit.
ChargingMixedMost charge without trouble on listed Worx chargers, though a few report charging faults.

About the Worx 20V 4.0Ah Replacement Battery 2-Pack

This is a pack of two 20V lithium-ion replacement batteries for cordless Worx tools. Each battery has a 4.0Ah (4000 mAh) capacity.

The batteries work with the Worx 20V battery system and replace Worx WA3525 and WA3520 batteries. They also work with Worx 40V (2x20V) Power Share tools.

Voltage: 20V
Battery type: Lithium-ion
Capacity: 4.0Ah (4000 mAh) each
Quantity: 2 batteries
Power source: Cordless
Replaces: Worx WA3525, Worx WA3520
System: Worx 20V
Compatible tools: Worx 40V (2x20V) Power Share tools, WG284, WG584, WG584.1, WG644
Compatible chargers: WA3875, WA3731, WA3732, WA3742, WA3770

Specifications

Tool Type: Battery
Power Source: Cordless
Power Voltage: 20V
Battery Voltage: 20V
Battery Type: Lithium-ion
Battery Capacity: 4000 mAh
Number Of Batteries Included: 2

Questions and answers

Will these fit my Worx 20V tools?: They are built for the Worx 20V Power Share system and listed as replacements for the WA3520 and WA3525 packs. They also work in 40V (2x20V) tools such as the WG284, WG584 and WG644.
Which chargers work with these batteries?: They are listed as compatible with the WA3875, WA3731, WA3732, WA3742 and WA3770 chargers. Other Worx 20V chargers may also work, but these are the stated ones.
How do these compare with genuine Worx batteries?: Capacity matches the 4.0Ah Worx packs, and the pair gives you two batteries at once. Some owners report shorter life than genuine packs, so the trade-off is longevity against the two-pack convenience.
Are these the same as the WA3525 and WA3520?: They are sold as replacements for those packs, not as genuine Worx parts. Expect the same 20V, 4.0Ah specification but different warranty support.
What is in the box?: Two 20V 4.0Ah lithium-ion batteries. Chargers and tools are not included.
Can I use one battery in a 40V tool?: No. The 40V (2x20V) tools take two 20V packs together. A single pack will not run them.
Where is the Worx 20V 4.0Ah Replacement Battery 2-Pack cheapest?: At Walmart, for $29.74, as of our latest check.
What do buyers say about the Worx 20V 4.0Ah Replacement Battery 2-Pack?: Rated 3.9 out of 5 from 89 ratings.